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Characiformes (Characins) >
Erythrinidae (Trahiras)
Etymology: Hoplias: Greek, hoplon = weapon (Ref. 45335).
Eponymy: Dr João Batista de Lacerda (1845–1915) was a physician, biomedical scientist and anthropologist. [...] (Ref. 128868), visit book page.
Taxonomic Remarks
See Britski, 1970(81-82) for diganose and differentiation of Hoplias malabaricus.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical
South America: Ribeira de Iguape River basin in São Paulo and Paraná, Brazil.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 75.0 cm SL hane/ej könsbestämd; (Ref. 37025); publicerad maxvikt: 4.3 kg (Ref. 79585)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
This species is distinguished from the other species of H. lacerdae group in having 6-8 pores of the laterosensory system along the ventral surface of dentary (vs. 4-6 in H. brasiliensis and H. intermedius, always 5 in H. australis and 4 in H. curupira); 43-48 scales along lateral line (vs. 38-43 H. brasiliensis and 34-39 in H. curupira) (Ref. 81195).
Body shape (shape guide): elongated; Cross section: circular.
Piscivorous (Ref. 79585).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Oyakawa, O.T. and G.M.T. Mattox, 2009. Revision of the Neotropical trahiras of the Hoplias lacerdae species-group (Ostariophysi: Characiformes: Erythrinidae) with descriptions of two new species. Neotrop. Ichthyol. 7(2):117-140. (Ref. 81195)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Vattenbruk: kommersiell
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00724 (0.00397 - 0.01320), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
4.3 ±0.7 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Moderate to high vulnerability (53 of 100). 🛈 |
Priskategori (Ref. 80766) |
Unknown.
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